package chapter03.example1;
class Student{
    private  String name;
    private int age;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        if (age>0){
            System.out.println("您输入的年龄有误！");
        }else{
        this.age = age;
    }
}
public void read(){
    System.out.println("大家好，我是"+name+"，年龄"+age);
    }
}
public class Example04 {
        public static void main(String[] args){
            Student stu = new Student();
            stu.setName("张三");
            stu.setAge(-18);
            stu.read();
        }
}

